US Bridges

CR 860 over Artichoke River

Good

St. Louis County, Minnesota · 0.1 MI E of JCT Csah 31 · Structure no. 69A80

Built
2021
4 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
79 ft
1 main span
Daily traffic
5
2011 count
Owner
County
County Highway Agency

About this bridge

CR 860 over Artichoke River is a prestressed concrete stringer/multi-beam or girder carrying CR 860 over Artichoke River in St. Louis County, Minnesota. It was built in 2021, so it is 4 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5 vehicles a day, projected to reach 49 by 2031. The structure is 79 ft (24 m) long and 31 ft wide. If it were closed, the detour would be 123 mi (198 km).

CarriesCR 860
CrossesArtichoke River
Location0.1 MI E of JCT Csah 31
RouteCounty Highway 860
Coordinates46.87004, -92.60094
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating57.9 US tons
Inventory rating41.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length79 ft (24 m)
Longest span77 ft (23.4 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2011)
Projected traffic49 by 2031
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123 mi (198 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 860 over Artichoke River built?

It was built in 2021, making it 4 years old in 2025.

What condition is CR 860 over Artichoke River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does CR 860 over Artichoke River carry?

About 5 vehicles per day (2011 count).

How long is CR 860 over Artichoke River?

The structure is 79 ft (24 m) long with a longest span of 77 ft (23.4 m) and a deck 31 ft wide.

Who owns CR 860 over Artichoke River?

It is owned by the County Highway Agency.